Finding the Fourth Proportional to 1,118,111,233.59, 1,543,062,537.65 and 616,318,887.19
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Solution
The fourth proportional to 1,118,111,233.59, 1,543,062,537.65 and 616,318,887.19 is: 850,558,117.56
Step by Step Solution
- Step 1: Write the proportion equation
1,118,111,233.59 : 1,543,062,537.65 = 616,318,887.19 : x - Step 2: Convert to fraction form
1,118,111,233.59/1,543,062,537.65 = 616,318,887.19/x - Step 3: Cross multiply
1,118,111,233.59x = 1,543,062,537.65 × 616,318,887.19 - Step 4: Simplify right side
1,118,111,233.59x = 951,018,586,072,494,976 - Step 5: Solve for x
x = 951,018,586,072,494,976/1,118,111,233.59 - Step 6: Final answer
x = 850,558,117.56
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.